A concave quadrilateral. An arrowhead or a delta, for example.
A non-regular quadrilateral is one where all the sides are not the same length. Therefore any rectangle (that is not technically a square) is a non-regular quadrilateral.
A 4 sided arrowhead quadrilateral would fit the description.
Infinitely many points are contained within a non-degenerate quadrilateral.
opposite sides
A concave quadrilateral. An arrowhead or a delta, for example.
A concave quadrilateral would be a non-convex quadrilateral. * * * * * Also known as delta or arrowhead or chevron.
It would be a concave quadrilateral The link below has some pics.
A non-regular quadrilateral is one where all the sides are not the same length. Therefore any rectangle (that is not technically a square) is a non-regular quadrilateral.
A 4 sided arrowhead quadrilateral would fit the description.
Any shape that has not got 4 sides is a non-quadrilateral
Infinitely many points are contained within a non-degenerate quadrilateral.
A quadrilateral?
opposite sides
4
no because a quadrilateral can be many shapes and non of them has the name of an n-gon
-- Every quadrilateral has four sides.-- If it has no right angles, then it could be a parallelogram, a rhombus,a kite, a trapezoid, or any non-regular quadrilateral.